Pouch-pneumatic for pipe-organs



(No Model.)

W. B. FLEMING. POUGH PNEUMATIC FOR PIPE ORGANS.

No. 594,391. Patented Nov. 30, 1897.

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UNITED STATES PATIENT @Trrcn,

\VILLIAM B. FLEMING, OF DETROIT, MICHIGAN.

POUCH-PM EU MATiC FQR PIPE GRGAEQS.

SPECIFICATION forming part of Letters Patent No. 594,391, dated November 30, 1897.

Application filed February 6, 1897. Serial No. 622,242. (No model.)

To all whom, it nmy concern:

Be it known that I, WILLIAM B. FLEMING, a citizen of the United States, residing at Detroit, county of lVayne, State of Michigan, have invented a certain new and useful Improvementin Pouch-Pneumatics for Pipe-Organs; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to certain new and useful improvements in pouch-pneumatics for pipe-organs; and it consists of the construction, combination, and arrangement of devices hereinafter described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a vertical section of parts of an organ mechanism disclosing my invention,

Fig. 2 is a cross-section of the pneumatic on the line 2 2, Fig. 1.

The aim of my invention is to provide pouchpneumatics for pipe-organs that shall be simple and economical in construction and eli icient in their operation.

I carry out my invention as follows:

In the drawings, A represents a pallet or fresh-wind box, which, it will be understood, is continually supplied with air.

B is a wind-chest.

C is a bottom board constructed with a channel C.

. D is a top board above the wind-chest B. Vithin the wind-chest B are located my improved pouch-pneumatics E.

F is a chest-bar constructed with an exhaust-channel F, communicating with an interior adjacent pouch-pneumatic and with the channel 0. Said chest-bar is also constructed with a wind-channel F ,OOi11IllU11lCti] ing with the wind-chest B and an adjacent pipe G, the communication of the channel F with the wind-chest being governed by a pal let or valve E. The pallet-box A communicates with the channel 0 through an opening at A. The channel G exhausts through an opening at 0 A valve H controls the communication of the pallet-box A through the opening A with the channel 0 and. a

valve II controls the communication of the exhaustchannel through the opening 0 Said valves II and II are mounted on a stem I1 mounted on a lever J, and connected, as by rod J, with a correspomling key on the keyboard, the key not being shown. The lever J is raised and held in normal condition by any suitable spring K.

The pouch-pneumatic is constructed of a block E cut away intermediate its ends,formin g shoulders c and 6. Over the cut-away portion of the block is secured a flexible strip E the block also being dished or cut away intermediate said shoulders to allow the flexible strip E to yield thereinto. Between the body of the block and the flexible strip is thus formed a wind-chamber I). Intermediate the shoulders c and e and between the chest-bar F and flexible strip E is formed a chamber E within the chest B and communicating thereinto.

is an y suitable spring bearing upon the pallet E to set the pallet firmly when windpressure is equalized. This spring may conveniently be made of a piece of wire run in through one end of the block E as shown, its in ner end engaging in a recessed bracket 9 E represents the forks by which the pouchpneumatic is secured upon the channel-board F by means of screws c.

It will be understood that each manual has its own wind-chest and that there are as many wind-chests as there are stops to the organ, there being as many pncumatics in each windchest as there are keys on the organ.

The operation of the devices hereinbefore described is as follows: The spring K normally holds the exhaust-valve l-I closed and the valve II open, permitting the air to pass from the pallet-box through the channels C and F into the pouch-pneumatic, which will of course close the pallet E and shut off wind from the pipe G. XVhen a given key is depressed, thereby drawing down lever J, the valve II is closed, cutting off wind from passing from the pallet-box into the channel 0 and opening the channel 0 through the port (3 whereby wind will be permitted to exhaust from the pouch E, in which event the pallet E will be lifted by the wind-pressure in the wind-chest B, collapsing the pouchpneumatic, whereby the wind may pass from the wind-chest B through the channel F to the pipe.

hat I claim as my invention is 1. The pouch-pneumatic constructed of a block cut away intermediate its extremities, a flexible strip secured upon the cutaway portion of the block and provided with a pallet, and a spring bearing upon said pallet, said pouch-pneumatic provided with a Windchannel communicating therewith, substantially as set forth.

2. The pouch-pneumatic constructed of the block E cut away intermediate its ends, and a flexible strip secured upon said block intermediate its ends, a pallet connected by said strip, and a spring bearing upon said pallet, said pouch-pneumatic having an air-passage communicating With the interior thereof substantially as set forth.

In a pipe-organ the combination of the Wind-chest B, and chest-bar F provided with air-passages F an d W, and a pouch-pneumatic located in the Wind-chest, said pouch-pneuinatic formed with an interior air chamber communicating With the channel F, with a flexible strip E a pallet carried by said flexible strip and a spring bearing upon said pallet, substantially as set forth.

i. In a pipe organ the combination With a Wind-chest B and a chest-bar F provided with air-passages Fand W, a pipe communieating with the Wind-chest, and a pouchpneumatic located in the Wind-chest, said pneumatic formed with an interior air-chamber communicating with the channel F,With a flexible strip 'E, a pallet E controlling the communication of the wind chest With the pipe, and a spring bearing upon said pallet, said wind-chest having a Wind-chamber E under said flexible strip, substantially as described.

5. The combination with a Wind-chest of an independent and separably removable pouch-pneumatic for each key on the organ, said pneumatic constructed of a block formed with a Wind-chamber l), a flexible strip forming one side of said chamber, and a pallet carried by said. strip, said pneumatic provided with an air-passage leading into said chamber, and said Wind-chest opening underneath said flexible strip, substantiall as described.

In testimony whereof I sign this specification in the presence of two witnesses.

WILLIABII 1-3. FLEMING. lVitnesscs:

N. S. li 'niorrr, A. E. Mnnnoon. 

